阅读说明：本技术 一种桥梁中央分隔带上的小型综合管廊装置 (Small-size utility tunnel device on bridge central authorities' division strip ) 是由 周倩茹 余祥亮 刘伟 刘晓华 曹诗定 韦彬 谢贞明 于 2019-09-25 设计创作，主要内容包括：本发明适用于桥梁设计技术领域,提供了一种桥梁中央分隔带上的小型综合管廊装置。本发明将需要上桥的管线集合在该装置中,使得传统的管线过桥难的问题通过集成方式高效解决,施工时管廊侧板可兼做防撞护栏的外侧模板,浇筑混凝土后连成一体,既能节省模板,又能适当减少防撞护栏宽度；装置的侧板与防撞护栏共同受力,一起抵抗桥面行车过程中的车辆偶然撞击荷载,兼具防抛功能；侧向稳定性及行车安全性得到增强,无需设置中央防抛网。同时,装置的预制装配化生产效率高,节约工期,节省桥面空间,具有较好的经济效益。(The invention is suitable for the technical field of bridge design and provides a small comprehensive pipe gallery device on a central separation belt of a bridge. The pipeline needing to be bridged is integrated in the device, so that the problem that the traditional pipeline is difficult to bridge is efficiently solved in an integrated mode, the side plates of the pipe gallery can be used as outer side templates of the anti-collision guardrail during construction, and the side plates are connected into a whole after concrete is poured, so that the templates can be saved, and the width of the anti-collision guardrail can be properly reduced; the side plates of the device and the anti-collision guardrails are stressed together to resist accidental impact load of vehicles in the process of travelling on the bridge deck, and the anti-throwing device has an anti-throwing function; lateral stability and driving safety are enhanced, and a central anti-throwing net is not required to be arranged. Meanwhile, the device is high in prefabrication assembly production efficiency, the construction period is saved, the bridge floor space is saved, and better economic benefits are achieved.)

1. A small comprehensive pipe gallery device on a central separation belt of a bridge is characterized in that the whole length direction of the small comprehensive pipe gallery device is consistent with the longitudinal direction of the bridge; the pipeline concrete prefabricated box comprises a box body structure prefabricated by high-performance concrete, a manhole cover plate, a pipeline concrete base and a pipeline support, wherein a plurality of manholes facilitating pipeline installation and maintenance are formed in the top of the box body structure along the length direction of the box body structure, and the manhole cover plate is detachably covered above the manholes; the pipeline concrete base is fixed on the bottom plate of the box body structure, the pipeline support is fixed on the side plate of the box body structure, the pipeline support comprises a cross rod and a vertical rod, the axis direction of the long edge of the cross rod is parallel to the bottom plate of the box body and is consistent with the transverse direction of the bridge, and the axis direction of the long edge of the vertical rod is perpendicular to the bottom plate of the box body and is consistent with the vertical direction of the bridge; and the bottom plate of the box body structure is also provided with a plurality of ventilation and water drainage holes.

2. The small utility tunnel device on a bridge center divider of claim 1, wherein the box structure comprises a bottom plate, a side plate and a top plate, the bottom plate, the side plate and the top plate together constitute a closed box structure, the manhole is arranged on the top plate, and the ventilation drain hole is arranged on the bottom plate; the box body structure adopts a factory prefabricated construction process, and is transported to a construction site to be hoisted in place.

3. The small utility tunnel device on the bridge center divider of claim 2, wherein the manholes are arranged every 20m along the length direction of the top plate, and the manhole cover plate is detachably installed by fastening steel plates.

4. The small utility tunnel installation on a bridge center divider of claim 2 wherein said vent drain openings are provided every 10m along the length of said floor adjacent to the outer sides of the edges of the bridge flanges.

5. The small utility tunnel device on a bridge center divider of claim 2, wherein each pipeline bracket is composed of a plurality of cross bars and a vertical bar, and one end of the cross bar is prefabricated with the vertical bar of the pipeline bracket in a vertically uniform arrangement to form a pipeline bracket.

6. The small utility tunnel device on a bridge center divider of claim 5, wherein the vertical rods of the pipeline bracket are connected with the side plates of the box structure by high-strength bolts; the pipeline supports are arranged at intervals of 3m along the length direction of the side plate.

Technical Field

The invention belongs to the technical field of bridge design, and particularly relates to a small comprehensive pipe gallery device on a central separation belt of a bridge.

Background

Due to the complex arrangement of urban pipelines, the problem of on-line bridging inevitably exists in the design of urban bridges, and the existing on-line bridging processing mode has certain disadvantages in practical application engineering. For example, in a bridge without a sidewalk, a steel bracket is usually used for suspending and fixing the steel bracket below a bridge flange plate, and a pipeline is exposed in the public field of vision, so that the defects of poor landscape effect and low structural utilization efficiency exist. For the bridge with sidewalks, pipelines are usually buried under sidewalk boards, but the width and the height of the sidewalk are increased invisibly in the mode, certain bridge floor space is wasted, and certain difficulty exists in maintenance.

In order to solve the above-mentioned problems of on-line bridging, increase the space utilization of the bridge and consider the bridge landscape, a new effective solution is urgently needed.

Disclosure of Invention

The invention aims to provide a small comprehensive pipe gallery device which can effectively solve the problem that pipelines are bridged and does not waste bridge floor space.

The invention is realized in such a way that the structural length direction of the small comprehensive pipe gallery device on the central separation belt of the bridge is consistent with the longitudinal direction of the bridge; the pipeline concrete prefabricated box comprises a box body structure prefabricated by high-performance concrete, a manhole cover plate, a pipeline concrete base and a pipeline support, wherein a plurality of manholes facilitating pipeline installation and maintenance are formed in the top of the box body structure along the length direction of the box body structure, and the manhole cover plate is detachably covered above the manholes; the pipeline concrete base is fixed on the bottom plate of the box body structure, the pipeline support vertical rods are fixed on the side plates of the box body structure, the support cross rods and the vertical rods are integrally prefabricated to form a single pipeline support structure, and the axis direction of the long edge of each pipeline support cross rod is parallel to the bottom plate of the box body and consistent with the transverse direction of the bridge; and a bottom plate of the box body structure is also provided with a plurality of ventilation and water drainage holes.

Further, the box body structure comprises a bottom plate, side plates and a top plate, the bottom plate, the side plates and the top plate jointly form a closed box body structure, the manhole is arranged on the top plate, and the ventilation drain holes are arranged on the bottom plate; the box body structure adopts a factory prefabricated construction process, and is transported to a construction site to be hoisted in place.

Furthermore, the manhole is arranged every 20m along the length direction of the top plate, and the manhole cover plate is detachably formed by adopting a steel plate fastening installation mode.

Furthermore, the ventilation and drainage holes are respectively arranged at the positions close to the two outer sides of the edge of the bridge flange plate every 10m along the length direction of the bottom plate.

Furthermore, each pipeline support is composed of a plurality of cross rods and a vertical rod, one end of each cross rod is vertically and evenly arranged, and the cross rods and the vertical rods of the pipeline supports are integrally prefabricated to form the pipeline support. Furthermore, the vertical rod of the pipeline support is connected with the side plate of the box body structure through a high-strength bolt; the pipeline supports are arranged at intervals of 3m along the length direction of the side plate.

Compared with the prior art, the invention has the beneficial effects that:

the invention arranges a prefabricated small-sized comprehensive pipe gallery device on the central separation belt of the bridge. The pipeline needing to be bridged can be integrated in the device, so that the problem that the traditional pipeline is difficult to bridge is solved in an integrated mode, the pipeline can be used as an outer template of the anti-collision guardrail during construction, and the pipeline can be connected into a whole after concrete is poured, so that the template can be saved, and the width of the anti-collision guardrail can be properly reduced; the side plates of the device and the anti-collision guardrails are stressed together to resist accidental impact load of vehicles in the process of travelling on the bridge deck, and the anti-throwing device has an anti-throwing function; lateral stability and driving safety are enhanced, and a central anti-throwing net is not required to be arranged. Meanwhile, the device is high in prefabrication assembly production efficiency, the construction period is saved, the bridge floor space is saved, and better economic benefits are achieved.

Drawings

Fig. 1 is a schematic cross-sectional view of a framed bridge with a small utility tunnel device installed according to an embodiment of the present invention;

FIG. 2 is a schematic cross-sectional view of the bridge of FIG. 1 taken along the line A-A;

FIG. 3 is a schematic cross-sectional view of the bridge of FIG. 1 taken along the direction B-B;

figure 4 is a schematic view of the structure of the line stand of the small utility tunnel device shown in figure 1.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to 3, an example of a bridge and a small utility tunnel device installed thereon according to the present invention is shown.

The framing bridge comprises flange plates 1 positioned on two sides, wherein the two flange plates 1 are arranged oppositely, and a certain distance is reserved between the two flange plates 1 to form a bridge central separation strip 10. And bridge anti-collision guardrails 2 are arranged on one sides of the two flange plates 1 close to the central separation belt 10. The small utility tunnel device is installed between two bridge crash barriers 2, i.e. in the area of the central division 10.

The length direction of the whole small comprehensive pipe gallery device is consistent with the longitudinal direction of the bridge; the pipeline concrete prefabricated box comprises a box body structure prefabricated by high-performance concrete, a manhole cover plate 3, a pipeline concrete base 4 and a pipeline support 5.

A plurality of manholes 6 are formed in the top of the box body structure along the length direction of the box body structure, so that the pipeline installation, maintenance and overhaul are facilitated. The manhole cover plate 3 is detachably provided above the manhole 6. The pipeline concrete base 4 is fixed on a bottom plate of the box body structure, the pipeline support vertical rods 5b are fixed on side plates of the box body structure, and the long-edge axial direction of the pipeline support transverse rods 5a is parallel to the bottom plate of the box body and consistent with the transverse direction of the bridge; the bottom of the box body structure is also provided with a plurality of ventilation and water drainage holes 7.

Specifically, the box structure includes a bottom plate 8a, side plates 8b, and a top plate 8 c. The bottom plate 8a, the side plate 8b and the top plate 8c together constitute a closed box structure. A manhole 6 is arranged on the top plate 8c, and a ventilation drain hole 7 is arranged on the bottom plate 8 a; the box body structure adopts a factory prefabricated construction process, and is transported to a construction site to be hoisted in place.

The manholes 6 are arranged every 20m along the length direction of the top plate 8c, and the manhole 6 cover plate adopts a steel plate buckling installation mode to form the detachable manhole cover plate 3. The ventilating and water draining holes 7 are respectively arranged at the positions close to the two outer sides of the edge of the bridge flange plate 1 every 10m along the length direction of the bottom plate 8a, and the diameter of each ventilating and water draining hole is 8 cm.

Referring to fig. 4, each of the pipeline brackets 5 is composed of a plurality of cross bars 5a and a vertical bar 5b, and one end of each of the cross bars 5a is prefabricated with the vertical bar 5b in a vertical uniform arrangement manner to form a pipeline bracket 5. The vertical support rod 5b of the pipeline support 5 is connected with the side plate 8b of the box body structure through a high-strength bolt; the line supports 5 are arranged every 3m along the length of the side plate 8 b.

In actual work progress, in the box structure construction behind the anticollision barrier 2, the reinforcing bar is reserved to anticollision barrier 2, treats small-size utility tunnel device and accomplishes the construction back, carries out the construction of anticollision barrier 2 again, and the outside template of anticollision barrier 2 can be done concurrently to the piping lane curb plate. Preferably, the space size between two bridge anticollision barriers 2 matches with the overall dimension of small-size utility tunnel device.

To sum up, this embodiment provides a width of cloth bridge to combine the characteristics of bridge, set up prefabricated small-size utility tunnel device on bridge central authorities separate the area. The pipeline needing to be bridged can be integrated in the device, so that the problem that the traditional pipeline is difficult to bridge is solved in an integrated mode, the pipeline can be used as an outer side template of the anti-collision guardrail 2 during construction, and the pipeline can be connected into a whole after concrete is poured, so that the template can be saved, and the width of the anti-collision guardrail 2 can be properly reduced; the side plate 8b of the device and the anti-collision guardrail 2 are stressed together to resist accidental impact load of vehicles in the process of travelling on the bridge floor, and the anti-throwing device has an anti-throwing function; lateral stability and driving safety are enhanced, and a central anti-throwing net is not required to be arranged. Meanwhile, the device is high in prefabrication assembly production efficiency, the construction period is saved, the bridge floor space is saved, and better economic benefits are achieved.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.